Adjustable bicycle-handle



(No Model.)

F. VOLLMER.

ADJUSTABLE BICYCLE HANDLE.

No. 587,626. Patentd Aug 3, 1897.

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and main handles 3.

UNITED STATES PATENT- OFFICE.

FRED VOLLMER, OF CHESTER, NEVXORK.

ADJUSTABLE BICYCLE-HANDLE.

SPECIFICATION forming part of Letters Patent No. 587,626, dated August3, 1897.

Application filed March 2 5, 1897. Serial No. 629,254- (No model.)

To all whom it may concern:

Be it known that I, FRED VOLLMER, a citizen of the United States,residing at Chester,

in the county of Orange and State of New York, have invented new anduseful Improvements in Adjustable Bicycle-Handles, of which thefollowing is a specification.

This invention relates to a handle which is capable of adjustment alonga handle-bar; and'the invention resides in the novel features ofconstruction set forth in the following specification and claims, andillustrated in the annexed drawings, in whiol1 Figure 1 is a plan viewof handles, one shown sectioned. Fig. 2 is a section along x 50, Fig. 1.

The steering-post 1 has the handle-bars 2 projecting therefrom, the freeends of these bars having handles 3, as shown. Sometimes 'a rider wantsto place one or both hands on a handle -bar intermediate thesteering-post An adjustable handle or handles 4 can be set for thispurpose along bars 2 at any point intermediate post 1 and main handles3.

Each supplementary handle a is hollow for the insertion of a stem 5,carrying a bearing face or block 6. The handle-bar 2 passes between thisblock 6 and an other bearing-block 7, which latter is tapped for theengagement of screw 8. This screw 8 is shown provided with a stem 9,adapted for the engagement of a key or tool for turning the screw. Thisscrew 8 is of somewhat larger diameter than its stem 0, so that thescrew 8 forms a shoulder at its meeting-point with such stem. Sittingsnugly about stem 9 and resting on screw part 8 is a filling-block 10,in which said stem 0 can rotate. The blocks 7 and 10, it is understood,are not intended to rotate. This stem 9 projects loosely or rotativelythrough a perforation at the top or bow part of a yoke or bail 11,jointed to handle 4, as by a pivot 12. \Vhen the screw 8 is rotated toscrew out of the tapped block 7, it will carry or press block 10 againstbail 11 and press block '7 against handle-bar 2 to grip the latterbetween blocks 7 and 6, or, in other words, to fix the supplementalhandle 4 on the bar 2. A reverse turn of screw-stem 9 "frees bar 2 fromthe grip of blocks 6 and 7 to enable the handle 4: to be slid oradjusted along bar 2. The swinging or pivoted bearing or yoke enablesthe handle 4: to pass or be fixed on curved or non-rectilinear parts ofthe bar 2.

The block 6 is supported by or forms part of the stem 5, and the latter,when made hollow, will not add unnecessarily to the Weight of thedevice. The block 6, when corrugated at its face contacting with bar 2,can be made to insure a tight grip or prevent the handle 4 slippingaccidentally along the bar. The blocks 6 and 7 can be convenientlytermed gripping-blocks, as they grip the handlebar" sitting between suchblocks. The block 10 may be termed a ffilling-blockjas it fills thespace between block '7 or between the shoulder of the screw-stem and thebow or yoke 11. The pivot 12 is shown passed through the handle at andblock-stem 5, so as to lock these two parts together or prevent theirrotating with respect to one another. lVhen made as a bolt, this pin orpivot 12, with the yoke 11, ispractieally formed with engaging angularor non-circular parts, so as to cause the bolt 12 to rotate as the yokeis swung, thus preventing the nut of this bolt being unscrewed or workedloose by the movements of the yoke. The angular part of the bolt isshown in Fig. 2 at the head end of the bolt, the other end of the boltbeing adapted I shouldered screw-stem made to extend or project throughthe yoke, a second grippingblock tapped for the engagement of thescrewstem, and a filling-block seated on the stemshoulder and throughwhich said stem rotatively extends, said filling-block being interposedbetween the tapped block and the yoke substantially as described.

3. A hollow handle combined with a stem in said handle, a pin or pivotextended through said handle and stem to look the two together, agripping-block carried by said stem, a swinging yoke on said pivot,ascrewstem rotatively extended through said oke, and a secondgripping-block actuated by said screw-stem substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing Witnesses. I

FRED VOLLMER. \Vitnesses: FRANK DURLAND, GEORGE R. VAIL.

